Firth-Brown Special Alloy Steels
Firth-Brown Special Alloy Steels - Thos Firth and John Brown Ltd Sheffield
Picture No
13891717
Media ID
43797229
Size
2115px x 3044px
(1.7MB)
Credit
© Aviation Ancestry Collection / Mary Evans
Source
Flight magazine - February 15th 1940
Date
1940
